[Robert A Cook PE]

Yes, the Yellowstone Caldera IS a tremendous volcanic threat.

But it has erupted at the 400,000 - 500,000 year interval. NOT every 50 years, 500 years, 5000 years, nor even 50000 years. The caldera is slowly expanding (rising) as it refills from below, but problems are not threatening even in the next 1000 - 2,000 years.

Far more likely than a Yellowstone even is a mudslide/loose snow-lava flow down the Washington and Oregon volcanoes.

However, the Los Angeles fault network of cracks IS overdue for a 7.5 to 8.0 earthquake, and THAT ENTIRE REGION IS overdue by a few dozen years for a major esarythquake.

AND even worse, the Portland - Seattle subduction zone fault zone IS overdue by about 200 years and IT DOES break regularly at 500 year-600 year intervals. THAT off-shore earthquake "typically" has tsunamis and magnitude 8.0 - 9.5 earthquakes that are tens times the energy released by the "usual" California big earthquakes.

[BenLurkin]

[Trumpet 1]

Thanks, R A Cook, Your factual analysis of fault lines and volcanoes has given me an attitude of positive thinking. Maybe Portland, Maybe LA. Probably not Wyoming.

[Lurker]

Let’s hope New Madrid doesn’t get frisky in our lifetimes.

L

[SunkenCiv]

Thanks Robert A Cook PE. It's the second one.

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